Red Hat Cluster Project 2.x allows local users to modify or overwrite arbitrary files via symlink attacks on files in /tmp, involving unspecified components in Resource Group Manager (aka rgmanager) before 2.03.09-1, gfs2-utils before 2.03.09-1, and CMAN - The Cluster Manager before 2.03.09-1 on Fedora 9.

The remote Oracle Linux 5 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2009-1341 advisory.

  - The (1) fence_apc and (2) fence_apc_snmp programs, as used in (a) fence 2.02.00-r1 and possibly (b) cman,     when running in verbose mode, allows local users to append to arbitrary files via a symlink attack on the     apclog temporary file. (CVE-2008-4579)

  - Red Hat Cluster Project 2.x allows local users to modify or overwrite arbitrary files via symlink attacks     on files in /tmp, involving unspecified components in Resource Group Manager (aka rgmanager) before     2.03.09-1, gfs2-utils before 2.03.09-1, and CMAN - The Cluster Manager before 2.03.09-1 on Fedora 9.
    (CVE-2008-6552)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Oracle Linux 5 host has a package installed that is affected by a vulnerability as referenced in the ELSA-2009-1339 advisory.

  - Red Hat Cluster Project 2.x allows local users to modify or overwrite arbitrary files via symlink attacks     on files in /tmp, involving unspecified components in Resource Group Manager (aka rgmanager) before     2.03.09-1, gfs2-utils before 2.03.09-1, and CMAN - The Cluster Manager before 2.03.09-1 on Fedora 9.
    (CVE-2008-6552)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote Oracle Linux 5 host has a package installed that is affected by a vulnerability as referenced in the ELSA-2009-1337 advisory.

  - Red Hat Cluster Project 2.x allows local users to modify or overwrite arbitrary files via symlink attacks     on files in /tmp, involving unspecified components in Resource Group Manager (aka rgmanager) before     2.03.09-1, gfs2-utils before 2.03.09-1, and CMAN - The Cluster Manager before 2.03.09-1 on Fedora 9.
    (CVE-2008-6552)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Updated cman packages that fix several security issues, various bugs, and add enhancements are now available for Red Hat Enterprise Linux 5.

This update has been rated as having low security impact by the Red Hat Security Response Team.

The Cluster Manager (cman) utility provides services for managing a Linux cluster.

Multiple insecure temporary file use flaws were found in fence_apc_snmp and ccs_tool. A local attacker could use these flaws to overwrite an arbitrary file writable by a victim running those utilities (typically root) with the output of the utilities via a symbolic link attack. (CVE-2008-4579, CVE-2008-6552)

Bug fixes :

* a buffer could overflow if cluster.conf had more than 52 entries per block inside the <cman> block. The limit is now 1024.

* the output of the group_tool dump subcommands were NULL padded.

* using device='' instead of label='' no longer causes qdiskd to incorrectly exit.

* the IPMI fencing agent has been modified to time out after 10 seconds. It is also now possible to specify a different timeout value with the '-t' option.

* the IPMI fencing agent now allows punctuation in passwords.

* quickly starting and stopping the cman service no longer causes the cluster membership to become inconsistent across the cluster.

* an issue with lock syncing caused 'receive_own from' errors to be logged to '/var/log/messages'.

* an issue which caused gfs_controld to segfault when mounting hundreds of file systems has been fixed.

* the LPAR fencing agent now properly reports status when an LPAR is in Open Firmware mode.

* the LPAR fencing agent now works properly with systems using the Integrated Virtualization Manager (IVM).

* the APC SNMP fencing agent now properly recognizes outletStatusOn and outletStatusOff return codes from the SNMP agent.

* the WTI fencing agent can now connect to fencing devices with no password.

* the rps-10 fencing agent now properly performs a reboot when run with no options.

* the IPMI fencing agent now supports different cipher types with the '-C' option.

* qdisk now properly scans devices and partitions.

* cman now checks to see if a new node has state to prevent killing the first node during cluster setup.

* 'service qdiskd start' now works properly.

* the McData fence agent now works properly with the McData Sphereon 4500 Fabric Switch.

* the Egenera fence agent can now specify an SSH login name.

* the APC fence agent now works with non-admin accounts when using the 3.5.x firmware.

* fence_xvmd now tries two methods to reboot a virtual machine.

* connections to OpenAIS are now allowed from unprivileged CPG clients with the user and group of 'ais'.

* groupd no longer allows the default fence domain to be '0', which previously caused rgmanager to hang. Now, rgmanager no longer hangs.

* the RSA fence agent now supports SSH enabled RSA II devices.

* the DRAC fence agent now works with the Integrated Dell Remote Access Controller (iDRAC) on Dell PowerEdge M600 blade servers.

* fixed a memory leak in cman.

* qdisk now displays a warning if more than one label is found with the same name.

* the DRAC5 fencing agent now shows proper usage instructions for the '-D' option.

* cman no longer uses the wrong node name when getnameinfo() fails.

* the SCSI fence agent now verifies that sg_persist is installed.

* the DRAC5 fencing agent now properly handles modulename.

* QDisk now logs warning messages if it appears its I/O to shared storage is hung.

* fence_apc no longer fails with a pexpect exception.

* removing a node from the cluster using 'cman_tool leave remove' now properly reduces the expected_votes and quorum.

* a semaphore leak in cman has been fixed.

* 'cman_tool nodes -F name' no longer segfaults when a node is out of membership.

Enhancements :

* support for: ePowerSwitch 8+ and LPAR/HMC v3 devices, Cisco MDS 9124 and MDS 9134 SAN switches, the virsh fencing agent, and broadcast communication with cman.

* fence_scsi limitations added to fence_scsi man page.

Users of cman are advised to upgrade to these updated packages, which resolve these issues and add these enhancements.

An updated rgmanager package that fixes multiple security issues, various bugs, and adds enhancements is now available for Red Hat Enterprise Linux 5.

This update has been rated as having low security impact by the Red Hat Security Response Team.

The rgmanager package contains the Red Hat Resource Group Manager, which provides high availability for critical server applications in the event of system downtime.

Multiple insecure temporary file use flaws were discovered in rgmanager and various resource scripts run by rgmanager. A local attacker could use these flaws to overwrite an arbitrary file writable by the rgmanager process (i.e. user root) with the output of rgmanager or a resource agent via a symbolic link attack. (CVE-2008-6552)

This update also fixes the following bugs :

* clulog now accepts '-' as the first character in messages.

* if expire_time is 0, max_restarts is no longer ignored.

* the SAP resource agents included in the rgmanager package shipped with Red Hat Enterprise Linux 5.3 were outdated. This update includes the most recent SAP resource agents and, consequently, improves SAP failover support.

* empty PID files no longer cause resource start failures.

* recovery policy of type 'restart' now works properly when using a resource based on ra-skelet.sh.

* samba.sh has been updated to kill the PID listed in the proper PID file.

* handling of the '-F' option has been improved to fix issues causing rgmanager to crash if no members of a restricted failover domain were online.

* the number of simultaneous status checks can now be limited to prevent load spikes.

* forking and cloning during status checks has been optimized to reduce load spikes.

* rg_test no longer hangs when run with large cluster configuration files.

* when rgmanager is used with a restricted failover domain it will no longer occasionally segfault when some nodes are offline during a failover event.

* virtual machine guests no longer restart after a cluster.conf update.

* nfsclient.sh no longer leaves temporary files after running.

* extra checks from the Oracle agents have been removed.

* vm.sh now uses libvirt.

* users can now define an explicit service processing order when central_processing is enabled.

* virtual machine guests can no longer start on 2 nodes at the same time.

* in some cases a successfully migrated virtual machine guest could restart when the cluster.conf file was updated.

* incorrect reporting of a service being started when it was not started has been addressed.

As well, this update adds the following enhancements :

* a startup_wait option has been added to the MySQL resource agent.

* services can now be prioritized.

* rgmanager now checks to see if it has been killed by the OOM killer and if so, reboots the node.

Users of rgmanager are advised to upgrade to this updated package, which resolves these issues and adds these enhancements.

Multiple insecure temporary file use flaws were discovered in rgmanager and various resource scripts run by rgmanager. A local attacker could use these flaws to overwrite an arbitrary file writable by the rgmanager process (i.e. user root) with the output of rgmanager or a resource agent via a symbolic link attack. (CVE-2008-6552)

It was discovered that certain resource agent scripts set the LD_LIBRARY_PATH environment variable to an insecure value containing empty path elements. A local user able to trick a user running those scripts to run them while working from an attacker-writable directory could use this flaw to escalate their privileges via a specially crafted dynamic library. (CVE-2010-3389)

This update also fixes the following bugs :

  - Previously, starting threads could incorrectly include a     reference to an exited thread if that thread exited when     rgmanager received a request to start a new thread. Due     to this issue, the new thread did not retry and entered     an infinite loop. This update ensures that new threads     do not reference old threads. Now, new threads no longer     enter an infinite loop in which the rgmanager enables     and disables services without failing gracefully.
    (BZ#502872)

  - Previously, nfsclient.sh left temporary     nfsclient-status-cache-$$ files in /tmp/. (BZ#506152)

  - Previously, the function local_node_name in     /resources/utils/member_util.sh did not correctly check     whether magma_tool failed. Due to this issue, empty     strings could be returned. This update checks the input     and rejects empty strings. (BZ#516758)

  - Previously, the file system agent could kill a process     when an application used a mount point with a similar     name to a mount point managed by rgmanager using     force_unmount. With this update, the file system agent     kills only the processes that access the mount point     managed by rgmanager. (BZ#555901)

  - Previously, simultaneous execution of 'lvchange
    --deltag' from /etc/init.d/rgmanager caused a checksum     error on High Availability Logical Volume Manager     (HA-LVM). With this update, ownership of LVM tags is     checked before removing them. (BZ#559582)

  - Previously, the isAlive check could fail if two nodes     used the same file name. With this update, the isAlive     function prevents two nodes from using the same file     name. (BZ#469815)

  - Previously, the S/Lang code could lead to unwanted     S/Lang stack leaks during event processing. (BZ#507430)

An insecure temporary file use flaw was found in ccs_tool. A local attacker could use this flaw to conduct a symbolic link attack, allowing them to overwrite (with the output of ccs_tool) an arbitrary file writable by the victim running ccs_tool. (CVE-2008-6552)

Multiple insecure temporary file use flaws were discovered in rgmanager and various resource scripts run by rgmanager. A local attacker could use these flaws to overwrite an arbitrary file writable by the rgmanager process (i.e. user root) with the output of rgmanager or a resource agent via a symbolic link attack. (CVE-2008-6552)

This update also fixes the following bugs :

  - clulog now accepts '-' as the first character in     messages.

  - if expire_time is 0, max_restarts is no longer ignored.

  - the SAP resource agents included in the rgmanager     package shipped with Scientific Linux 5.3 were outdated.
    This update includes the most recent SAP resource agents     and, consequently, improves SAP failover support.

  - empty PID files no longer cause resource start failures.

  - recovery policy of type 'restart' now works properly     when using a resource based on ra-skelet.sh.

  - samba.sh has been updated to kill the PID listed in the     proper PID file.

  - handling of the '-F' option has been improved to fix     issues causing rgmanager to crash if no members of a     restricted failover domain were online.

  - the number of simultaneous status checks can now be     limited to prevent load spikes.

  - forking and cloning during status checks has been     optimized to reduce load spikes.

  - rg_test no longer hangs when run with large cluster     configuration files.

  - when rgmanager is used with a restricted failover domain     it will no longer occasionally segfault when some nodes     are offline during a failover event.

  - virtual machine guests no longer restart after a     cluster.conf update.

  - nfsclient.sh no longer leaves temporary files after     running.

  - extra checks from the Oracle agents have been removed.

  - vm.sh now uses libvirt.

  - users can now define an explicit service processing     order when central_processing is enabled.

  - virtual machine guests can no longer start on 2 nodes at     the same time.

  - in some cases a successfully migrated virtual machine     guest could restart when the cluster.conf file was     updated.

  - incorrect reporting of a service being started when it     was not started has been addressed.

As well, this update adds the following enhancements :

  - a startup_wait option has been added to the MySQL     resource agent.

  - services can now be prioritized.

  - rgmanager now checks to see if it has been killed by the     OOM killer and if so, reboots the node.

Multiple insecure temporary file use flaws were discovered in GFS2 user level utilities. A local attacker could use these flaws to overwrite an arbitrary file writable by a victim running those utilities (typically root) with the output of the utilities via a symbolic link attack. (CVE-2008-6552)

This update also fixes the following bugs :

  - gfs2_fsck now properly detects and repairs problems with     sequence numbers on GFS2 file systems.

  - GFS2 user utilities now use the file system UUID.

  - gfs2_grow now properly updates the file system size     during operation.

  - gfs2_fsck now returns the proper exit codes.

  - gfs2_convert now properly frees blocks when removing     free blocks up to height 2.

  - the gfs2_fsck manual page has been renamed to fsck.gfs2     to match current standards.

  - the 'gfs2_tool df' command now provides human-readable     output.

  - mounting GFS2 file systems with the noatime or noquota     option now works properly.

  - new capabilities have been added to the gfs2_edit tool     to help in testing and debugging GFS and GFS2 issues.

  - the 'gfs2_tool df' command no longer segfaults on file     systems with a block size other than 4k.

  - the gfs2_grow manual page no longer references the '-r'     option, which has been removed.

  - the 'gfs2_tool unfreeze' command no longer hangs during     use.

  - gfs2_convert no longer corrupts file systems when     converting from GFS to GFS2.

  - gfs2_fsck no longer segfaults when encountering a block     which is listed as both a data and stuffed directory     inode.

  - gfs2_fsck can now fix file systems even if the journal     is already locked for use.

  - a GFS2 file system's metadata is now properly copied     with 'gfs2_edit savemeta' and 'gfs2_edit restoremeta'.

  - the gfs2_edit savemeta function now properly saves     blocks of type 2.

  - 'gfs2_convert -vy' now works properly on the PowerPC     architecture.

  - when mounting a GFS2 file system as '/', mount_gfs2 no     longer fails after being unable to find the file system     in '/proc/mounts'.

  - gfs2_fsck no longer segfaults when fixing 'EA leaf block     type' problems.

Multiple insecure temporary file use flaws were found in fence_apc_snmp and ccs_tool. A local attacker could use these flaws to overwrite an arbitrary file writable by a victim running those utilities (typically root) with the output of the utilities via a symbolic link attack. (CVE-2008-4579, CVE-2008-6552)

Bug fixes :

  - a buffer could overflow if cluster.conf had more than 52     entries per block inside the <cman> block. The limit is     now 1024.

  - the output of the group_tool dump subcommands were NULL     padded.

  - using device='' instead of label='' no longer causes     qdiskd to incorrectly exit.

  - the IPMI fencing agent has been modified to time out     after 10 seconds. It is also now possible to specify a     different timeout value with the '-t' option.

  - the IPMI fencing agent now allows punctuation in     passwords.

  - quickly starting and stopping the cman service no longer     causes the cluster membership to become inconsistent     across the cluster.

  - an issue with lock syncing caused 'receive_own from'     errors to be logged to '/var/log/messages'.

  - an issue which caused gfs_controld to segfault when     mounting hundreds of file systems has been fixed.

  - the LPAR fencing agent now properly reports status when     an LPAR is in Open Firmware mode.

  - the LPAR fencing agent now works properly with systems     using the Integrated Virtualization Manager (IVM).

  - the APC SNMP fencing agent now properly recognizes     outletStatusOn and outletStatusOff return codes from the     SNMP agent.

  - the WTI fencing agent can now connect to fencing devices     with no password.

  - the rps-10 fencing agent now properly performs a reboot     when run with no options.

  - the IPMI fencing agent now supports different cipher     types with the '-C' option.

  - qdisk now properly scans devices and partitions.

  - cman now checks to see if a new node has state to     prevent killing the first node during cluster setup.

  - 'service qdiskd start' now works properly.

  - the McData fence agent now works properly with the     McData Sphereon 4500 Fabric Switch.

  - the Egenera fence agent can now specify an SSH login     name.

  - the APC fence agent now works with non-admin accounts     when using the 3.5.x firmware.

  - fence_xvmd now tries two methods to reboot a virtual     machine.

  - connections to OpenAIS are now allowed from unprivileged     CPG clients with the user and group of 'ais'.

  - groupd no longer allows the default fence domain to be     '0', which previously caused rgmanager to hang. Now,     rgmanager no longer hangs.

  - the RSA fence agent now supports SSH enabled RSA II     devices.

  - the DRAC fence agent now works with the Integrated Dell     Remote Access Controller (iDRAC) on Dell PowerEdge M600     blade servers.

  - fixed a memory leak in cman.

  - qdisk now displays a warning if more than one label is     found with the same name.

  - the DRAC5 fencing agent now shows proper usage     instructions for the '-D' option.

  - cman no longer uses the wrong node name when     getnameinfo() fails.

  - the SCSI fence agent now verifies that sg_persist is     installed.

  - the DRAC5 fencing agent now properly handles modulename.

  - QDisk now logs warning messages if it appears its I/O to     shared storage is hung.

  - fence_apc no longer fails with a pexpect exception.

  - removing a node from the cluster using 'cman_tool leave     remove' now properly reduces the expected_votes and     quorum.

  - a semaphore leak in cman has been fixed.

  - 'cman_tool nodes -F name' no longer segfaults when a     node is out of membership.

Enhancements :

  - support for: ePowerSwitch 8+ and LPAR/HMC v3 devices,     Cisco MDS 9124 and MDS 9134 SAN switches, the virsh     fencing agent, and broadcast communication with cman.

  - fence_scsi limitations added to fence_scsi man page.

NOTE: openais and pexpect updates are required.

An updated gfs2-utils package that fixes multiple security issues and various bugs is now available for Red Hat Enterprise Linux 5.

This update has been rated as having low security impact by the Red Hat Security Response Team.

The gfs2-utils package provides the user-space tools necessary to mount, create, maintain, and test GFS2 file systems.

Multiple insecure temporary file use flaws were discovered in GFS2 user level utilities. A local attacker could use these flaws to overwrite an arbitrary file writable by a victim running those utilities (typically root) with the output of the utilities via a symbolic link attack. (CVE-2008-6552)

This update also fixes the following bugs :

* gfs2_fsck now properly detects and repairs problems with sequence numbers on GFS2 file systems.

* GFS2 user utilities now use the file system UUID.

* gfs2_grow now properly updates the file system size during operation.

* gfs2_fsck now returns the proper exit codes.

* gfs2_convert now properly frees blocks when removing free blocks up to height 2.

* the gfs2_fsck manual page has been renamed to fsck.gfs2 to match current standards.

* the 'gfs2_tool df' command now provides human-readable output.

* mounting GFS2 file systems with the noatime or noquota option now works properly.

* new capabilities have been added to the gfs2_edit tool to help in testing and debugging GFS and GFS2 issues.

* the 'gfs2_tool df' command no longer segfaults on file systems with a block size other than 4k.

* the gfs2_grow manual page no longer references the '-r' option, which has been removed.

* the 'gfs2_tool unfreeze' command no longer hangs during use.

* gfs2_convert no longer corrupts file systems when converting from GFS to GFS2.

* gfs2_fsck no longer segfaults when encountering a block which is listed as both a data and stuffed directory inode.

* gfs2_fsck can now fix file systems even if the journal is already locked for use.

* a GFS2 file system's metadata is now properly copied with 'gfs2_edit savemeta' and 'gfs2_edit restoremeta'.

* the gfs2_edit savemeta function now properly saves blocks of type 2.

* 'gfs2_convert -vy' now works properly on the PowerPC architecture.

* when mounting a GFS2 file system as '/', mount_gfs2 no longer fails after being unable to find the file system in '/proc/mounts'.

* gfs2_fsck no longer segfaults when fixing 'EA leaf block type' problems.

All gfs2-utils users should upgrade to this updated package, which resolves these issues.

Multiple insecure temporary file handling vulnerabilities were discovered in Red Hat Cluster. A local attacker could exploit these to overwrite arbitrary local files via symlinks. (CVE-2008-4192, CVE-2008-4579, CVE-2008-4580, CVE-2008-6552)

It was discovered that CMAN did not properly handle malformed configuration files. An attacker could cause a denial of service (via CPU consumption and memory corruption) in a node if the attacker were able to modify the cluster configuration for the node. (CVE-2008-6560).

Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

The remote Redhat Enterprise Linux 5 host has a package installed that is affected by a vulnerability as referenced in the RHSA-2009:1337 advisory.

  - cman, gfs2-utils, rgmanager: multiple insecure temporary file use issues (CVE-2008-6552)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

A major code audit did show several unsecure use of /tmp. This update addresses those issues across the whole code.

Note that Tenable Network Security has extracted the preceding description block directly from the Fedora security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

ID	Name	Product	Family	Severity
181082	Oracle Linux 5 : cman (ELSA-2009-1341)	Nessus	Oracle Linux Local Security Checks	medium
181076	Oracle Linux 5 : rgmanager (ELSA-2009-1339)	Nessus	Oracle Linux Local Security Checks	medium
180628	Oracle Linux 5 : gfs2-utils (ELSA-2009-1337)	Nessus	Oracle Linux Local Security Checks	medium
63894	RHEL 5 : cman (RHSA-2009:1341)	Nessus	Red Hat Local Security Checks	medium
63893	RHEL 5 : rgmanager (RHSA-2009:1339)	Nessus	Red Hat Local Security Checks	medium
60961	Scientific Linux Security Update : rgmanager on SL4.x i386/x86_64	Nessus	Scientific Linux Local Security Checks	medium
60957	Scientific Linux Security Update : ccs on SL4.x i386/x86_64	Nessus	Scientific Linux Local Security Checks	medium
60659	Scientific Linux Security Update : rgmanager on SL5.x i386/x86_64	Nessus	Scientific Linux Local Security Checks	medium
60653	Scientific Linux Security Update : gfs2-utils on SL5.x i386/x86_64	Nessus	Scientific Linux Local Security Checks	medium
60650	Scientific Linux Security Update : cman on SL5.x i386/x86_64	Nessus	Scientific Linux Local Security Checks	medium
43788	CentOS 5 : cman (CESA-2009:1341)	Nessus	CentOS Local Security Checks	medium
43787	CentOS 5 : rgmanager (CESA-2009:1339)	Nessus	CentOS Local Security Checks	medium
43786	CentOS 5 : gfs2-utils (CESA-2009:1337)	Nessus	CentOS Local Security Checks	medium
43368	Ubuntu 6.06 LTS / 8.04 LTS / 8.10 : redhat-cluster, redhat-cluster-suite vulnerabilities (USN-875-1)	Nessus	Ubuntu Local Security Checks	high
40839	RHEL 5 : gfs2-utils (RHSA-2009:1337)	Nessus	Red Hat Local Security Checks	medium
34716	Fedora 9 : cman-2.03.09-1.fc9 / gfs2-utils-2.03.09-1.fc9 / rgmanager-2.03.09-1.fc9 (2008-9458)	Nessus	Fedora Local Security Checks	high

Detections

Analytics

CVE-2008-6552

medium

Tenable Plugins

medium

medium

medium

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medium

medium

medium

medium

medium

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high

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high